Thin-gauge high-alloy steel plate rolling method

• Main Authors: GU ZIYOU, WU YANYANG, ZHAO ZIJUAN, LI YANGBING, YUE XINXIN, YIN WEIJIANG, LIU SHENG, ZHAO GUOCHANG, LONG JIE, NIU HONGXING, YUAN JINCHENG, CHEN QI, PANG HUIYONG, HOU JINGCHAO
• Format: Patent
• Language: Chinese; English
• Published: 10.01.2023
• Subjects: ALLOYS; CHEMISTRY; FERROUS OR NON-FERROUS ALLOYS; MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL; METALLURGY; PERFORMING OPERATIONS; PUNCHING METAL; ROLLING OF METAL; TRANSPORTING; TREATMENT OF ALLOYS OR NON-FERROUS METALS

The invention discloses a thin-gauge high-alloy steel plate rolling method, and belongs to the technical field of ferrous metallurgy. The rolling method adopts a sectional reheating rolling process, and comprises the following steps: first-stage rolling: high-pressure water is pumped for descaling each rolling pass, a blank is rolled to 60-70 mm in 8-10 passes, and the finish rolling temperature is 750-790 DEG C; hoisting the blank back to the continuous heating furnace head within 60s, and reassembling and heating for 3-7min; and second-stage rolling: rolling for 6-9 passes until the thickness of a finished product is achieved, and high-pressure water is pumped for descaling in each rolling pass. According to the steel plate rolled through the technology, the rolling qualification rate of the steel plate is larger than or equal to 98%, the surface quality of the steel plate is good, the grinding amount is smaller than or equal to 5%, the plate shape of the steel plate is good, and the unevenness is controlle